Abstract: In order to make use of the agricultural climatic resources under the background of climate warming, as well as mitigate and adapt to the adverse effects caused by climate change, the authors carried out the study. By taking the rice production area in Jiangsu Province as an example, using observation data from 60 meteorological stations from 1961 to 2012, and adopting the estimation model and statistical method, the authors analyzed the changing trend and influence of agricultural climate resources in the whole growth period of single-season rice. The results showed that from 1961 to 2012, in the whole growth period of single-season rice, total solar radiation declined by decade. The declining rates of northern, central and southern area of Jiangsu were 65 MJ/(m²·10 a), 43 MJ/(m²·10 a), 52 MJ/(m²·10 a), respectively. The declining of light resource was unfavorable for photosynthesis of single-season rice. There was a significantly warming mutation of the active accumulated temperature≥10℃around 2000 in central and southern area of Jiangsu, meaning that heat resources was increasing significantly in the 21^st century. The beginning date of daily temperature stability through 10℃ was advanced, while the ending date was delayed. During the whole growth period, precipitation was overall adequate, having no significantly changing trend. Therefore, in 1961-2012, the agricultural climatic resources in Jiangsu showed a reducing trend in radiation resources, an increasing trend in heat resources, while the water resources were abundant. As a result, the climate change had both advantages and disadvantages.